Dynamic balance monitoring system for three-axis gyroscope of centrifugal machine

Abstract

The utility model discloses a dynamic balance monitoring system for a three-axis gyroscope of a centrifugal machine. The dynamic balance monitoring system comprises a motor matching disc, a motor supporting disc and a detection piece, the motor matching disc is arranged at the circumferential position of the end face of the motor assembly, the motor matching disc is connected with the motor supporting disc through the first damping assembly, the motor supporting disc is connected with the installation base through the second damping assembly, and the detection piece is arranged on the motor supporting disc. The detection piece is a three-axis gyroscope, and a connecting hole matched with the three-axis gyroscope is formed in the motor supporting disc; the three-axis gyroscope is fixed on the motor supporting disc through a bolt; according to the scheme, the motor matching disc is connected with the end face of the motor, the end face vibration data of the motor can be transmitted to the detection part located on the motor supporting disc, the vibration data of the motor can be directly detected through the detection part, and meanwhile, the first damping assembly and the second damping assembly are arranged, so that interference can be reduced; on the other hand, the overall noise is reduced, and the whole interval process can be efficiently carried out.

Description

TECHNICAL FIELD

[0001] The utility model centrifuge monitoring technical field relates to a centrifuge three-axis gyroscope dynamic balance monitoring system particularly. BACKGROUND

[0002] The centrifuge equipment running stability is the core index of ensuring the experimental precision and the equipment life.

[0003] 1. Sample distribution deviation and dynamic instability mechanism; the asymmetric distribution of experimental samples in the rotor cavity (such as significant weight difference of symmetric site samples) can cause initial static balance failure. In the high-speed rotation process, the scale or residue (especially corrosive samples) of viscous materials on the screen surface further causes dynamic accumulation of mass eccentricity, forming periodic centrifugal force imbalance.

[0004] 2. Superposition effect of mechanical structure defects; unevenness of the material quality in the rotor manufacturing link (such as casting density deviation), machining tolerance exceeding or assembly misplacement directly lead to initial dynamic balance failure. In long-term operation, rotor fatigue deformation (such as bending caused by thermal stress) or bearing raceway wear aggravate the imbalance risk.

[0005] 3. Installation foundation and linkage system defects; the deviation of equipment installation levelness or insufficient base stiffness can cause resonance amplification effect, which significantly improves the vibration amplitude. The additional bending moment generated by the coupling centering deviation, and the bearing damping decline caused by lubrication failure, can all weaken the system imbalance resistance.

[0006] The centrifuge generally has the following system hazards caused by imbalance:

[0007] 1. Equipment level damage: in the centrifugal force imbalance transmission path, the radial load peak value borne by the bearing far exceeds the rated value, causing ball peeling or retainer fracture; severe vibration causes bolt loosening, sealing failure, and even rotor flying off and other mechanical accidents.

[0008] 2. Experimental and operation risk: vibration noise interferes with precise experimental results (such as reducing separation purity), and frequent shutdown maintenance leads to experimental cycle extension. Gradual imbalance problems need to rely on manual offline correction, which significantly increases the hidden cost.

[0009] The existing technology relies on periodic manual balancing or offline dynamic balancing instrument correction, which cannot monitor instantaneous imbalance (such as dynamic deviation during sample centrifugation) in real time; and the long-term stability of traditional sensors in high temperature and corrosive environment is insufficient, which is difficult to meet the industrial continuous operation demand. UTILITY MODEL CONTENTS

[0010] The utility model discloses a centrifuge three -axis gyroscope dynamic balance monitoring system, including motor cooperation disc, motor support disc and detection piece, the motor cooperation disc sets up at the end surface circumferential position of motor assembly, the motor cooperation disc is connected with motor support disc through first damping component, the motor support disc is connected with mounting seat through second damping component, and the detection piece sets up on motor support disc, the detection piece is three -axis gyroscope, and the motor support disc is provided with the connecting hole that cooperates with three -axis gyroscope, three -axis gyroscope is fixed on the motor support disc through bolt.

[0011] The utility model discloses a centrifuge three -axis gyroscope dynamic balance monitoring system, including motor cooperation disc, motor support disc and detection piece, the motor cooperation disc sets up at the end surface circumferential position of motor assembly, the motor cooperation disc is connected with motor support disc through first damping component, the motor support disc is connected with mounting seat through second damping component, and the detection piece sets up on motor support disc, the detection piece is three -axis gyroscope, and the motor support disc is provided with the connecting hole that cooperates with three -axis gyroscope, three -axis gyroscope is fixed on the motor support disc through bolt.

[0012] A kind of centrifuge three -axis gyroscope dynamic balance monitoring system, including motor cooperation disc, motor support disc and detection piece, the motor cooperation disc sets up at the end surface circumferential position of motor assembly, the motor cooperation disc is connected with motor support disc through first damping component, the motor support disc is connected with mounting seat through second damping component, and the detection piece sets up on motor support disc, the detection piece is three -axis gyroscope, and the motor support disc is provided with the connecting hole that cooperates with three -axis gyroscope, three -axis gyroscope is fixed on the motor support disc through bolt.

[0013] Based on the structure of the above-mentioned centrifuge three-axis gyroscope dynamic balance monitoring system, the motor support disc and the motor cooperation disc are arranged in parallel, the center position of the motor cooperation disc is provided with an avoiding hole, and the motor assembly is arranged through the avoiding hole.

[0014] Based on the structure of the above-mentioned centrifuge three-axis gyroscope dynamic balance monitoring system, the inner side wall of the motor cooperation disc is integrally formed with the motor assembly, an embedded hole is arranged on the end surface of the motor cooperation disc, the embedded hole is provided with a first threaded hole matched with the first damping component, and the embedded hole is evenly arranged as a plurality of embedded holes along the circumferential position of the motor cooperation disc.

[0015] Based on the structure of the above-mentioned centrifuge three-axis gyroscope dynamic balance monitoring system, the first damping component includes a plurality of first damping pads, the first damping pads are in a cylindrical structure as a whole, the upper end of the first damping pad is connected with the first threaded hole in the embedded hole through a bolt, and the lower end is connected with the motor support disc.

[0016] Based on the structure of the above-mentioned centrifuge three-axis gyroscope dynamic balance monitoring system, the first damping pad is provided with three or six according to requirements, and the central angles of the adjacent first damping pads are the same.

[0017] Based on the structure of the above-mentioned centrifuge three-axis gyroscope dynamic balance monitoring system, the motor support disc is provided with a second threaded hole matched with the first damping pad and a third threaded hole matched with the second damping component, the first threaded hole is arranged at a position close to the inner ring surface of the motor support disc, and the third threaded hole is arranged at a position close to the outer ring surface of the motor support disc.

[0018] Based on the structure of the above-mentioned centrifuge three-axis gyroscope dynamic balance monitoring system, the second threaded hole and the third threaded hole are arranged alternately.

[0019] Based on the structure of the centrifuge three-axis gyroscope dynamic balance monitoring system, the second damping assembly comprises a plurality of second damping pads; the second damping pad is a cylindrical structure, the upper end of the second damping pad is connected with the third threaded hole on the motor support disc through a bolt, and the lower end is connected with the mounting seat.

[0020] Based on the structure of the centrifuge three-axis gyroscope dynamic balance monitoring system, the size of the second damping pad is not less than that of the first damping pad, and the second damping pad is provided as three.

[0021] Based on the structure of the centrifuge three-axis gyroscope dynamic balance monitoring system, a cable groove is arranged at the inner ring surface of the motor support disc; the cable groove is arranged close to the three-axis gyroscope; based on the above technical scheme, the centrifuge three-axis gyroscope dynamic balance monitoring system has the following beneficial effects:

[0022] 1, the motor matching disc and the end surface of the motor are connected, which can transmit the end surface vibration data of the motor to the detection part on the motor support disc, and the vibration data of the motor can be directly detected through the detection part, and the first damping assembly and the second damping assembly are arranged, which can reduce interference and noise on the whole, so that the whole interval process can be efficiently carried out.

[0023] 2, the three-axis gyroscope in the scheme can monitor the vibration data of the object, such as the displacement of X axis, Y axis and Z axis; compared with the traditional micro switch, the three-axis gyroscope can realize real-time monitoring and feedback of real-time data, so that the whole detection process is more efficient. At the same time, three-axis gyroscope only needs two bolts to complete the fixation, and the difficulty of disassembly and assembly is lower, which reduces the difficulty of later maintenance; at the same time, three-axis gyroscope can realize the function of level instrument, which guides the installation of motor and the leveling after moving centrifuge. BRIEF DESCRIPTION OF DRAWINGS

[0024] Fig. 1 It is a schematic diagram of the whole three-dimensional structure of the utility model;

[0025] Fig. 2 It is a position diagram of the second threaded hole in the utility model;

[0026] BRIEF DESCRIPTION OF DRAWINGS: 1, motor matching disc; 2, motor support disc; 3, detection part; 4, motor assembly; 5, first damping assembly; 6, second damping assembly; 7, cable groove; 8, mounting seat; 11, embedded hole; 12, first threaded hole; 21, second threaded hole; 22, third threaded hole. DETAILED DESCRIPTION

[0027] All features disclosed in this specification, and / or all elements of the methods disclosed, can be combined in any combination, provided that the combinations do not exclude any technical effect of one or another disclosed feature or element.

[0028] Any feature in the present specification, including any accompanying claims, abstract, and drawings, can be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. That is, unless expressly stated, each feature is one example only of a generic series of equivalent or similar features.

[0029] In the description of the present application, it is to be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0030] In addition, the terms "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features.

[0031] Embodiment 1

[0032] As Figs. 1-2 shown, the present application provides a technical scheme:

[0033] A centrifuge three-axis gyroscope dynamic balance monitoring system, which at least includes but is not limited to a motor matching disc 1, a motor support disc 2 and a detection piece 3; the motor matching disc 1 is arranged at the end face circumferential position of a motor assembly 4, the motor matching disc 1 is connected with the motor support disc 2 through a first damping assembly 5, the motor support disc 2 is connected with a mounting seat 8 through a second damping assembly 6, and the detection piece 3 is arranged on the motor support disc 2.

[0034] Based on the above structure, the connection of the motor matching disc 1 and the end face of the motor can transmit the end face vibration data of the motor to the detection part located on the motor support disc 2, the vibration data of the motor can be directly detected through the detection part, and the first damping assembly 5 and the second damping assembly 6 are arranged, which can reduce interference on the one hand and reduce the overall noise on the other hand, so that the whole interval process can be efficiently carried out.

[0035] As an example, the detection piece 3 is a three-axis gyroscope, and a connecting hole matched with the three-axis gyroscope is arranged on the motor support disc 2; the three-axis gyroscope is fixed on the motor support disc 2 through bolts.

[0036] Based on the above structure, the three-axis gyroscope in the scheme can monitor the vibration data of the object, such as the displacement of the X-axis, Y-axis and Z-axis directions; compared with the traditional micro switch, the three-axis gyroscope can realize real-time monitoring and feedback real-time data of detection, so that the whole detection process is more efficient. At the same time, three-axis gyroscope only needs 2 bolts to complete the fixation, and the difficulty of disassembly is lower, which reduces the difficulty of later maintenance; at the same time, three-axis gyroscope can realize the function of level instrument, guide motor installation and leveling after centrifuge moving.

[0037] As an example, the motor support disc 2 is arranged in parallel with the motor matching disc 1, and the motor assembly 4 is arranged through the avoiding hole in the center position of the motor matching disc 1.

[0038] Based on the above structure, the motor support disc 2 is arranged in parallel with the motor matching disc 1, and the motor assembly 4 is arranged through the avoiding hole in the center position of the motor matching disc 1.

[0039] As an example, the motor matching disc 1 is integrally formed with the motor assembly 4 on the inner side wall, and the embedded hole 11 is arranged on the end face of the motor matching disc 1; the embedded hole 11 is provided with the first threaded hole 12 matched with the first damping assembly 5.

[0040] The embedded hole 11 is uniformly arranged as a plurality of positions along the circumferential direction of the motor matching disc 1, which is 6 in the embodiment, and the central angle of adjacent embedded holes 11 is 60°.

[0041] Based on the above structure, by setting the embedded hole 11, the bolt head can be avoided from protruding from the surface of the motor matching disc 1 when installing the first damping assembly 5, so as to reduce the overall volume, avoid interference with other components, and make the whole structure more compact and stable.

[0042] As an example, the first damping assembly 5 can include a plurality of first damping pads, the first damping pad is in a cylindrical structure, the upper end of the first damping pad is connected with the first threaded hole 12 in the embedded hole 11 through a bolt, and the lower end is connected with the motor support disc 2.

[0043] The first damping pad can be set as 3 or 6 according to the requirement, and the central angles of adjacent first damping pads are the same. In the embodiment, the number of first damping pads is matched with the number of embedded holes 11, which is 6, and of course it can also be set according to the requirement.

[0044] Based on the above structure, by setting a plurality of first damping pads, better detection can be realized, and the central angles of adjacent damping pads are uniformly set, which can make the stability of the whole motor assembly 4 better.

[0045] As an example, the second threaded hole 21 matched with the first damping pad and the third threaded hole 22 matched with the second damping assembly 6 are arranged on the motor support disc 2, the first threaded hole 12 is arranged on the motor support disc 2 at a position close to the inner ring face, and the third threaded hole 22 is arranged on the motor support disc 2 at a position close to the outer ring face.

[0046] Based on the above structure, the second threaded hole 21 and the third threaded hole 22 can provide a mounting basis for the first damping assembly 5 and the second damping assembly 6, so that the first damping assembly 5 and the second damping assembly 6 are mounted at a specified position.

[0047] As an example, the second threaded hole 21 and the third threaded hole 22 are arranged alternately.

[0048] Based on the above structure, by arranging the second threaded hole 21 and the third threaded hole 22 alternately, the damping parts of the first damping assembly 5 and the second damping assembly 6 can be located on different support faces, and the overall damping effect can be better.

[0049] As an example, the second damping assembly 6 can include a plurality of second damping pads; the second damping pad is of a cylindrical structure, the upper end of the second damping pad is connected with the third threaded hole 22 on the motor support disc 2 through a bolt, and the lower end is connected with the mounting seat 8.

[0050] The size of the second damping pad is not less than that of the first damping pad. In the embodiment, the second damping pad is arranged as three, and since the three second damping pads need to bear more weight, the size of the second damping pad needs to be arranged larger, so that the damping effect can be better realized.

[0051] As an example, the cable groove 7 is arranged at the inner ring face of the motor support disc 2; the cable groove 7 is close to the three-axis gyroscope; the three-axis gyroscope can be led outwards through the cable groove 7, so that the whole structure is more regular.

[0052] In the scheme, a central processing unit can also be arranged, real-time data checked by the three-axis gyroscope can be processed, a point position offset in an image is fed back, an unbalance value of a motor end face is quantified, and a centrifuge unbalance operation alarm action is realized through setting a control threshold value.

[0053] The above only describes preferred embodiments of the utility model, and does not limit the utility model, and any modification, equivalent replacement and improvement made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A centrifuge three-axis gyro dynamic balance monitoring system, characterized in that, Including motor matching disc, motor support disc and detection piece;The motor matching disc is arranged at the end face circumferential position of the motor assembly, the motor matching disc is connected with the motor support disc through the first damping assembly, the motor support disc is connected with the mounting seat through the second damping assembly, and the detection piece is arranged on the motor support disc;The detection piece is a three-axis gyroscope, and the motor support disc is provided with a connecting hole matched with the three-axis gyroscope;The three-axis gyroscope is fixed on the motor support disc through bolts.

2. A dynamic balance monitoring system for a three-axis gyro of a centrifuge as claimed in claim 1, characterized in that: The motor support disc and the motor matching disc are arranged in parallel, the center position of the motor matching disc is provided with an avoiding hole, and the motor assembly passes through the avoiding hole and is arranged.

3. 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A dynamic balance monitoring system for a three-axis gyro of a centrifuge as claimed in claim 3, wherein: ​ 5. A dynamic balance monitoring system for a three-axis gyro of a centrifuge as defined in claim 4, wherein: ​ 6. A dynamic balance monitoring system for a three-axis gyro of a centrifuge as defined in claim 5, wherein: ​ 7. A dynamic balance monitoring system for a three-axis gyro of a centrifuge as defined in claim 6, wherein: ​ 8. A dynamic balance monitoring system for a three-axis gyro of a centrifuge as defined in claim 7, wherein: ​ 9. A dynamic balance monitoring system for a three-axis gyro of a centrifuge as defined in claim 8, wherein: ​ 10. A dynamic balance monitoring system for a three-axis gyro of a centrifuge as defined in claim 9, wherein: ​

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